425520227 has 4 divisors (see below), whose sum is σ = 464203896. Its totient is φ = 386836560.

The previous prime is 425520209. The next prime is 425520233. The reversal of 425520227 is 722025524.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 425520227 - 2⁶ = 425520163 is a prime.

It is a super-2 number, since 2×425520227² = 362134927172263058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 425520227.

It is not an unprimeable number, because it can be changed into a prime (425520527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19341818 + ... + 19341839.

It is an arithmetic number, because the mean of its divisors is an integer number (116050974).

Almost surely, 2^425520227 is an apocalyptic number.

425520227 is a deficient number, since it is larger than the sum of its proper divisors (38683669).

425520227 is a wasteful number, since it uses less digits than its factorization.

425520227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38683668.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 425520227 is about 20628.1416273982. The cubic root of 425520227 is about 752.1539426381.

The spelling of 425520227 in words is "four hundred twenty-five million, five hundred twenty thousand, two hundred twenty-seven".